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Turntable for scanning driven by servo with back light.
18h 38m
3× print file
0.20 mm
0.25 mm
0.40 mm
286.00 g
In the contest Mechanical Marvels
90
222
2
5069
updated January 5, 2023

Description

PDF

Hello

this is an electric turntable with servo motor and LED backlight. The purpose for me is 3D scanning with skanect sensor. I tested a 15Kg object (my kid) and it worked. 

Print volume:

230 x 200 x 30 for the bottom part.
So This basically fills the complete MK3s platen

Standard Parts BOM:

As usually I just picket parts I had around. Hope this is not too specific.

  • Big bearing: 2809 standard outer dia. 22mm bearing (1x)
  • Small bearing outer dia. 16mm (4x)
  • toggle switch (2x)
  • Servo motor (manipulated running as notmal +-DC) 24x10mm body size
  • potentiometer (optional)
  • 8x LED red 2V (8x) (optional)
  • M3 screw 10mm with socket screw head (3x)
  • M5 screw >16mm flat screw head
Build Instructions:

Print bottom table part case and pins (4x) 
Assemble the small bearing with the pins
Solder cable to servo and switch and assemble these.
(Optional put potentiometer and 2way switch istead for an additional RPM speed)
(Optional put switch and LEDs in place and solder them)

Print Turntable Plate and Shell
Assemble the big bearing with a M5 screw and the shell to the plate.
The shell is to fit the bearing to the M5 Screw
(Optional to avoid shine throught of LED, paint bottom side)

Print gear and assemble to servo.

Print Cap and assemble to bottom case with 3x M3x10 screw.

General things:

The weakest and hopfully first part to break when overloading is the pin.
When you print the table with high fill density then this should be quite stable.
The surface of the plate where the small bearings are in contact probably needs to be sanded.
I used 3.6v Li-Ion battery to power this up. (see my other models)

EDIT 05.01.2023
its hard to tell if your servo fits… This is quite an issue.
I added two screenshots of the size of the servo slot.
Additional I added an STL part of the slot only. Print that out and test your servo first to save time and material.

For Servo wireing I went the easy way and just manupolated the connection like seen in this video: (I am sure you can do better with some fancy adruino pwm things)

 

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Model origin

The author marked this model as their own original creation.

License